more import fixes

src/main/java/com/sparrowwallet/sparrow/control/TitledDescriptionPane.java

@@ -125,7 +125,7 @@ public class TitledDescriptionPane extends TitledPane {
         contentBox.setPadding(new Insets(10, 30, 10, 30));
 
         double width = TextUtils.computeTextWidth(details.getFont(), message, 0.0D);
-        double numLines = Math.max(1, width / 400);
+        double numLines = Math.max(1, Math.ceil(width / 400d));
 
         //Handle long words like txids
         OptionalDouble maxWordLength = Arrays.stream(message.split(" ")).mapToDouble(word -> TextUtils.computeTextWidth(details.getFont(), message, 0.0D)).max();

src/main/java/com/sparrowwallet/sparrow/io/Electrum.java

@@ -266,20 +266,7 @@ public class Electrum implements KeystoreFileImport, WalletImport, WalletExport
 
     @Override
     public boolean isEncrypted(File file) {
-        if(FileType.BINARY.equals(IOUtils.getFileType(file))) {
-            try {
-                try(Scanner s = new Scanner(file))  {
-                    if(s.hasNextLine() && s.nextLine().equals("{")) {
-                        return false;
-                    }
-                }
-                return true;
-            } catch(FileNotFoundException e) {
-                //Can't happen
-            }
-        }
-
-        return false;
+        return (FileType.BINARY.equals(IOUtils.getFileType(file)));
     }
 
     @Override

src/main/java/com/sparrowwallet/sparrow/io/IOUtils.java

@@ -7,7 +7,7 @@ public class IOUtils {
     public static FileType getFileType(File file) {
         try {
             String type = Files.probeContentType(file.toPath());
-            if (type == null) {
+            if(type == null) {
                 if(file.getName().toLowerCase().endsWith("txn") || file.getName().toLowerCase().endsWith("psbt")) {
                     return FileType.TEXT;
                 }
@@ -17,6 +17,8 @@ public class IOUtils {
                         String line = br.readLine();
                         if(line.startsWith("01000000") || line.startsWith("cHNid")) {
                             return FileType.TEXT;
+                        } else if(line.startsWith("{")) {
+                            return FileType.JSON;
                         }
                     }
                 }